After the tomato colonization, some vegetable growers were too weak to grow seedlings, which increased the supply of fertilizer and water during the seedling period, resulting in serious tomato growth. The first and second ear fruits were obviously smaller, and more deformed fruits were produced. According to experience, tomato seedlings should be watered or not watered as much as possible, and should not be fertilized. When the first fruit of the tomato has the size of a walnut, an appropriate amount of ternary high-potassium compound fertilizer is used to promote fruit enlargement. After applying high potash fertilizer twice, the nitrogen, phosphorus, and potassium balance fertilizers should be applied once to avoid the high potassium content of soil nitrogen and affect plant growth. The seedlings of the early seedlings are thin but not hollow, the leaves are small and thick, and the leaves are dark green. This kind of tomato seedlings can obtain high yield in the later period; on the contrary, the seedling stage has sufficient fertilizer and water, the seedling stems are thick and hollow, the leaves are large and tender, and the leaf color is relatively Light, such tomato seedlings are leggy seedlings, but not strong, often the first, second and third ear fruit set fruit rate is low, the fruit is small, the early yield is low. The main cause of tomato seedling growth is the excessive growth of nutrients at the seedling stage, which affects the reproductive growth in the future, resulting in an imbalance between vegetative growth and reproductive growth. Tomato seedling management should grasp the word “control†to increase the yield, especially to increase the previous production. In addition to water and fertilizer control, it should also pay attention to temperature control, the temperature should be controlled at about 10 °C. In daily life, some residents have installed video surveillance at the building crossing in front of the door for their own safety, but some neighbors believe that the installation of surveillance cameras in public areas violates personal privacy and require removal.
The monitoring range of the monitoring doorbell is generally 70 degrees;
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The doorbell type surveillance camera (cat's eye camera) can avoid these problems. The doorbell type camera is installed in the cat's eye position of the traditional door, which will not make the neighbors feel uncomfortable and can ensure their own safety.
Before you can see the doorbell, you can negotiate with your neighbors first, and then install it after obtaining consent to avoid subsequent disputes;
The doorbell has infrared night vision, real-time viewing, automatic recording, face recognition, cloud storage and other functions. Whenever and wherever you open the app of the smart doorbell with your mobile phone, you can know everything outside your home at any time; As long as someone stays in front of the doorbell for more than 15 seconds, a reminder message will be received on the mobile phone APP.